use nodejs instead of node command if it exists

closes #1449

nodebb

@@ -4,6 +4,11 @@
 # $1 action
 # $2 subaction
 
+node="$(which nodejs 2>/dev/null)";
+if [ $? -gt 0 ];
+	then node="$(which node)";
+fi
+
 function pidExists() {
 	if [ -e "pidfile" ];
 		then
@@ -29,7 +34,7 @@ case "$1" in
 		fi;
 
 		# Start the loader daemon
-		node loader -d "$@"
+		"$node" loader -d "$@"
 		;;
 
 	stop)
@@ -77,24 +82,24 @@ case "$1" in
 		npm install
 		ls -d node_modules/nodebb* | xargs -n1 basename | xargs npm install
 		ls -d node_modules/nodebb* | xargs -n1 basename | xargs npm update
-		node app --upgrade
+		"$node" app --upgrade
 		touch package.json
 		echo -e "\n\e[00;32mNodeBB Dependencies up-to-date!\e[00;00m";
 		;;
 
 	setup)
-		node app --setup "$@"
+		"$node" app --setup "$@"
 		;;
 
 	reset)
-		node app --reset --$2
+		"$node" app --reset --$2
 		;;
 
 	dev)
 		echo "Launching NodeBB in \"development\" mode."
 		echo "To run the production build of NodeBB, please use \"forever\"."
 		echo "More Information: https://github.com/designcreateplay/NodeBB/wiki/How-to-run-NodeBB"
-		NODE_ENV=development node loader --no-daemon "$@"
+		NODE_ENV=development "$node" loader --no-daemon "$@"
 		;;
 
 	watch)